Třída: Chondrichthyes - paryby
Řád: Torpediniformes -
Čeleď: Narcinidae - narcinovití

Reference: Rincon, G., M. F. W. Stehmann & C. M. Vooren 2001. Results of the research cruises of FRV `Walther Herwig' to South America. LXXIV. Benthobatis kreffti n. sp. (Chondrichthyes, Torpediniformes, Narcinidae), a new deep-water electric ray from off South Brazil and the third species of the genus. Arch. Fish. Mar. Research v. 49 (no. 1): 45-60.